Answer: 
Step-by-step explanation:
Subtract 15 on both sides.
Solve ;
It’s simple -
find the constant that is in both terms in the equations
for example:
-4m - 4y
both terms have -4 so you would factor it out to get -4(m + y)
another example
cw^3 - cx^2
both have the term c so it would be
c(w^3 - x^2)
and so on
Do base times height (how many along the bottom times how many cubes tall it is)
First, choose variables to represent the length and width of this rectangle. Why not use L and W? Then the area is L*W=84 sq. in., and this equation could be solved for either L or W. If for L, then L=84/W.
The Perimeter of the rectangle is P = 2L + 2W. Substitute the above expression for L into this expression for P. Doing so eliminates L from your equation. Now consider graphing your equation for P(W). Does your graph show a minimum value? If so, at which W value?
